Home / 8,678-20,277

Finding the Third Proportional to 8,678 and 20,277

Calculator

Solution

The third proportional to 8,678 and 20,277 is: 47,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678 : 20,277 = 20,277 : x
  2. Step 2: Convert to fraction form
    8,678/20,277 = 20,277/x
  3. Step 3: Cross multiply
    8,678x = 20,277 × 20,277
  4. Step 4: Simplify right side
    8,678x = 411,156,729
  5. Step 5: Solve for x
    x = 411,156,729/8,678
  6. Step 6: Final answer
    x = 47,379.20

Related Problems

Find third proportional to 4,339 and 10,138.50
Half scale
Find third proportional to 17,356 and 40,554
Double scale
Find third proportional to 8,680 and 20,282
Similar ratio
Find third proportional to 13,017 and 30,415.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.